Novel and Highly Stable Apatite Supported MoO3 Catalysts for Selective Methanol Oxidation to Formaldehyde

Joachim Thrane, Christopher F. Elvebakken, Lasse S. Ladefoged, Uffe V. Mentzel, Max Thorhauge, Anker D. Jensen, Martin Høj*

*Corresponding author for this work

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Abstract

Formaldehyde is the most important commercially available aldehyde due to its high reactivity and usability as a C1 building block [1]. Formaldehyde has been forecasted to have an increase in production of near 5 % p.a. and reach 36.6⋅106 tons p.a. by 2026 [2]. For-maldehyde is primarily produced by the Formox process, where methanol is selectively oxi-dized over a Fe2(MoO4)3/MoO3 (FeMo) catalyst, at high conversions (>99 %) and high selec-tivity (92-95 %) [1]. The major problem of the process is the short catalyst lifetime (6-12 months)[3], due to the MoO3 component forming volatile species with the methanol feed [4], which migrate and re-condense downstream in the reactor resulting in selectivity loss and increasing pressure drop.
To mitigate the problem of the short catalyst lifetime, synthesis and investigation of novel promising materials is needed. This includes understanding the active phase, deactivation phenomena, and the scale-up, when going from catalyst powder to industrial sized pellets. These areas have been addressed in this study of novel catalysts composed of MoO3 supported on hydroxyapatite.
Original languageEnglish
Publication date2020
Publication statusPublished - 2020
Event17th International Congress on Catalysis (ICC2020) - Manchester Grand Hyatt Hotel, San Diego, United States
Duration: 14 Jun 202019 Jun 2020

Conference

Conference17th International Congress on Catalysis (ICC2020)
LocationManchester Grand Hyatt Hotel
CountryUnited States
CitySan Diego
Period14/06/202019/06/2020

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